Relief bone



FIG. 1 is a top plan view of a relief bone, the bottom plan view is amirror image;

FIG. 2 is a right side elevational view thereof, the left sideelevational view is a mirror image;

FIG. 3 is a front elevational view; and,

FIG. 4 is a rear elevational view.

We claim the ornamental design for a relief bone, as shown anddescribed.